Question

Check whether -2is the zero of the polynomial if p(x)=x2-x-6

Answer 1

Answer:

p(x)=x²-x-6.

x=-2.

p(-2)=(-2)²-(-2)-6.

=4+2-6.

=6-6.

=0.

Answer 2

Answer:

since, p(x) = x² - x - 6

so,

p( -2) = (-2)² -(-2) -6

= 4 + 2 -6

= 0

since,

p(-2) = 0

so (-2) is a zero of the the polynomial p(x)

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